In 2011, according to their own corporate accounts, Mercedes spent a staggering £242.1million funding the team itself in Brackley and its engine division in Brixworth.
It is worth noting that 25 per cent of that figure, £60million, was paid out to the team's 989 employees - understood to be the largest staff roster in F1.
There was a rise in expenditure on engines of 54.2 per cent to £116.4million, with a significant proportion of that devoted to the research and development of the new-for-2014 V6 powerplants.
Mercedes are likely to have spent similar amounts last year, again in continuing their engine push for next season but also developing the team's 2013 car in which Lewis Hamilton will make his debut.
Taking all that expenditure into account, you can understand why the powers that be at Mercedes' headquarters in Stuttgart will be demanding a lot more bang for their buck this season.
A lack of results was why Mercedes parted company with motorsport boss Norbert Haug in December - albeit apparently by mutual consent - although the man himself appreciated what had gone before was not good enough.
When Mercedes took over 2009 champions Brawn GP and lured seven-time title-winner Michael Schumacher out of retirement, no one would have dared believe the team would win just once in the next three years.
But that is the damning statistic that hangs over Mercedes, and why rumours surfaced over Brawn's position early in the year.
Following Toto Wolff's appointment as Haug's successor there were suggestions he would come in and sweep away the old guard, with rumours rife the Austrian was seeking to recruit McLaren technical director Paddy Lowe, potentially as a replacement for Brawn.
It is now clear Lowe is on his way as McLaren have appointed a new TD in Tim Goss, with the former taken off the team's F1 programme as he sees out the final year of his contract.
As to his exact role when he joins Mercedes at the end of the year, that is unclear, whether it will be to replace Brawn or work alongside him.
It was only two months ago Brawn defiantly stated: "I am the team principal and I am in charge", only to duck questions about his long-term future.
"I hope I'm going to be a part of the team for a very long time," added Brawn.
"And when I say 'hope', I mean I continue to find the excitement and the motivation and the reasons to go racing, because racing gives me a buzz.
"Mercedes want a long-term commitment, and obviously with a lot of additions, I want to see how things go before I make a final long-term commitment."
When approached again about his job last month, Brawn simply stated he was "very settled", with his focus more on the coming season than anything beyond that.
As for Wolff, he has - for now - decided against making any drastic changes, instead opting to observe from close quarters.
Unlike Haug, who opted to base himself in Stuttgart rather than at Brackley, Wolff believes he will learn nothing about the operation of the team if not close at hand.
Wolff conceded less than four weeks ago he "would be foolish to take assumptions now".
The 41-year-old added: "I need some time to meet people, speak to them and get an overview, but I think what the team needs utmost is stability.
"We are coming up to a difficult season, a very important season for the team, so let's keep the ball flat at the moment and see how it develops."
With three-time champion Niki Lauda acting as non-executive chairman of Mercedes Grand Prix Ltd, a subsidiary of parent company Daimler in which he has a 10 per cent stake and Wolff 30 per cent, more than reputations at stake.
As both Lauda and Wolff have bought into the organisation, the latter said: "I have put my neck on the line, so they know I have no room for failure.
"Not only have I taken a personal risk by leaving Williams - where I enjoyed working - but there is also a financial and economic side to it.
"But I would never have got involved in something if I believed I couldn't do it."
It means for Brawn and Wolff results are paramount this season, and arguably more than the one win will be required to satisfy the board of Mercedes.
If that does not materialise then there will likely be changes, which means we may be approaching the end of an era if Brawn, one of the greatest technical minds in F1, should depart the scene for good.